<%@ Language=VBScript %>
FusionCharts Free - Client Side Dynamic Chart ( using Database) Example
<%
'We've included ../Includes/FusionCharts.asp, which contains functions
'to help us easily embed the charts.
%>
<%
'In this example, we show a combination of database + JavaScript rendering using FusionCharts.
'The entire app (page) can be summarized as under. This app shows the break-down
'of factory wise output generated. In a pie chart, we first show the sum of quantity
'generated by each factory. These pie slices, when clicked would show detailed date-wise
'output of that factory.
'The XML data for the pie chart is fully created in ASP at run-time. ASP interacts
'with the database and creates the XML for this.
'Now, for the column chart (date-wise output report), we do not submit request to the server.
'Instead we store the data for the factories in JavaScript arrays. These JavaScript
'arrays are rendered by our ASP Code (at run-time). We also have a few defined JavaScript
'functions which react to the click event of pie slice.
'We've used an Access database which is present in ../DB/FactoryDB.mdb.
'It just contains two tables, which are linked to each other.
'Before the page is rendered, we need to connect to the database and get the
'data, as we'll need to convert this data into JavaScript variables.
'The following string will contain the JS Data and variables.
'This string will be built in ASP and rendered at run-time as JavaScript.
Dim jsVarString
jsVarString = ""
'Database Objects
Dim oRs, oRs2, strQuery, indexCount
indexCount = 0
'Create the recordset to retrieve data
Set oRs = Server.CreateObject("ADODB.Recordset")
'Iterate through each factory
strQuery = "select * from Factory_Master"
Set oRs = oConn.Execute(strQuery)
While not oRs.EOF
indexCount = indexCount + 1
'Create JavaScript code to add sub-array to data array
'data is an array defined in JavaScript (see below)
'We've added vbTab & vbCRLF to data so that if you View Source of the
'output HTML, it will appear properly. It helps during debugging
jsVarString = jsVarString & vbTab & vbTab & "data[" & indexCount & "] = new Array();" & vbCRLF
'Now create second recordset to get date-wise details for this factory
Set oRs2 = Server.CreateObject("ADODB.Recordset")
strQuery = "select * from Factory_Output where FactoryId=" & ors("FactoryId") & " order by DatePro Asc" & vbCRLF
Set oRs2 = oConn.Execute(strQuery)
While not oRs2.EOF
'Put this data into JavaScript as another nested array.
'Finally the array would look like data[factoryIndex][i][dataLabel,dataValue]
jsVarString = jsVarString & vbTab & vbTab & "data[" & indexCount & "].push(new Array('" & datePart("d",ors2("DatePro")) & "/" & datePart("m",ors2("DatePro")) & "'," & ors2("Quantity") & "));" & vbCRLF
oRs2.MoveNext()
Wend
'Close recordset
Set oRs2 = Nothing
oRs.MoveNext()
Wend
%>
Inter-connected charts - Click on any pie slice to see detailed chart below.
The charts in this page have been dynamically generated using data contained in a database. We've NOT hard-coded the data in JavaScript.
<%
'Initialize the Pie chart with sum of production for each of the factories
'strXML will be used to store the entire XML document generated
Dim strXML
'Re-initialize Index
indexCount=0
'Generate the graph element
strXML = ""
'Move back to first index of the factory master recordset
oRs.MoveFirst()
While Not oRs.Eof
'Update index count - sequential
indexCount = indexCount + 1
'Now create second recordset to get details for this factory
Set oRs2 = Server.CreateObject("ADODB.Recordset")
strQuery = "select sum(Quantity) as TotOutput from Factory_Output where FactoryId=" & ors("FactoryId")
Set oRs2 = oConn.Execute(strQuery)
'Generate
'Note that we're setting link as updateChart(factoryIndex) - JS Function
strXML = strXML & ""
'Close recordset
Set oRs2 = Nothing
oRs.MoveNext
Wend
'Finally, close element
strXML = strXML & ""
Set oRs = nothing
'Create the chart - Pie 3D Chart with data from strXML
Call renderChart("../../FusionCharts/FCF_Pie3D.swf", "", strXML, "FactorySum", 650, 300)
%>
<%
'Column 2D Chart with changed "No data to display" message
'We initialize the chart with
Call renderChart("../../FusionCharts/FCF_Column2D.swf?ChartNoDataText=Please click on a pie slice above to view detailed data.", "", "", "FactoryDetailed", 600, 300)
%>
Unable to see the chart(s) above?